Q. My maple tree has black spots on the leaves that just appeared recently. Should I be concerned about this? What should I do? A. Sometimes wet conditions earlier in the season can cause problems ...

Q: My large old maple tree has black bark on much of the trunk. Is this a disease that would make it more likely to fall? It still developed leaves and seeds but is relatively close to the house ...

Sooty Bark Disease can kill native and non-native trees. Its spores can cause an allergic reaction in people. A Tacoma-based study needs citizen scientists.

Q: Over the last couple of years, our Norway and Sunset maples have developed long, vertical splits in the bark. These splits can be as much as four feet long. This spring, some of them have been ...

Question: we have several maple trees in our neighborhood afflicted with this black spot (see attached photo). What can we do to protect our maple trees? Anwer: while it is difficult to confirm a ...

Maple bark disease Hulbert doesn’t wear a mask when examining trees and said the general public needn’t worry about walking past trees. When mature, the fungus releases clouds of airborne spores.

The black bark patches in trees is what distinguishes them as having the sooty bark disease. Not to be confused with lichen or moss that is often on trees and is harmless to ... Maple bark disease.

The black bark patches in trees are what distinguish them as having the sooty bark disease. Not to be confused with lichen or moss that is often on trees and is harmless to ... Maple bark disease.